intermittent reverse and electrical faults.

If you have Automatic gearbox problems or issues that would only affect an Auto, please ask here.

Please provide as much information as possible including photos you have taken and uploaded directly to the topic.
Forum rules
One question per topic about an Auto or semi-auto gearbox can be posted in this section
No engine questions
Think: Auto not changing up or down, snowflake/sport flashing, flappy paddles, actuator fault and sensodrive not changing gear.
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

Hello all,

i have read through a lot of posts but cant find anything like what we are seeing happen on our 2005 1.6 sensodrive that we bought about 3 months ago.

First problem was the keys kept not working and needed to follow the process to reassign (immobiliser worked fine)

over the last few days the car has stalled and thrown up the following faults in the dash:
abs faulty
airbag faulty
fan belt fault

and then yesterday gearbox fault.

When it was in reverse it wouldnt move and then suddenly jerked backwards.

I went out to help my partner and it worked first time with no problems so we drove it home. It was fine all the way and then the same fault when getting onto the drive.

Left overnight and its worked fine this morning.

Any ideas what would cause an intermittent electrical / gearbox fault or how to diagnose? it appears to be when its very hot but that could be a coincidence.
User avatar
My Name: C3CAR

Guru
Posts: 2621
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 148 times
Been thanked: 88 times

Post

redz wrote:When it was in reverse it wouldnt move and then suddenly jerked backwards.
Hi redz, its a manual gearbox with solenoids to select gear and the clutch actuation. Mechanical faults like this I expect to be with the clutch actuator. They get stiff and give poor clutch operation.
redz wrote:First problem was the keys kept not working and needed to follow the process to reassign (immobiliser worked fine)
Faulty buttons can give problems for remote synchronisation.
redz wrote:over the last few days the car has stalled
Stalled? What was happening just before it stalled?
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

i wasnt in the car but i believe it was changing gear as it happened at an island and then wouldnt start.

it worked fine for me all day yesterday but this happened this morning when my partner drove to work and she's really worried to drive back this evening now.
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

cut out when slowing down the wouldnt start without jumping fwd.
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

i have been told that it could be transmission fluid levels?

how do i check this?
User avatar
My Name: C3CAR

Guru
Posts: 2621
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 148 times
Been thanked: 88 times

Post

redz wrote:i have been told that it could be transmission fluid levels?

how do i check this?
You need to see if you actually have a sensodrive. Transmission fluid levels are for automatics.
redz wrote:cut out when slowing down the wouldnt start without jumping fwd.
These is probably an error code stored if its an engine fault, try reading with a cheap OBD reader to see what it stored.
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

so drive fine for a while today and then out the aircon on and almost immediately displayed gearbox fault. Turned off the engine waited about 2 minutes drove fine.

pulled into the carpark and to test it, put the aircon on again and again almost immediately gearbox fault. turned it iff waited a few minutes, drive home fine.

now the remote doesnt work!!

will the odd readers linked to display the faults?

I'm thinking its more likely to be an electrical fault due to the aircon cutting in. Battery is fine but haven't tested the alternator.
User avatar
My Name: C3CAR

Guru
Posts: 2621
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 148 times
Been thanked: 88 times

Post

redz wrote:will the odd readers linked to display the faults?
No, you will need lexia reader set-up for anything other than engine codes.
redz wrote:Battery is fine but haven't tested the alternator.
If your alternator is bad, the battery won't be 'good' for long ;)
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

does anybody near nottingham have one of these magic boxes or is it a trip to a very expensive auto diagnostics centre (aka take your money and run)
My Name: redz

Contributor
Posts: 7
Joined: Sat May 27, 2017 7:49 am
Model: C3 2002-2005, Original shape model
Year: 2005 (05)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Exclusive
Gearbox: Flappy paddles
DPF: No
LHD or RHD: RHD (UK)

Post

Had it diagnosed as the clutch actuator.

i 'think' it happens when the fan comes on as it appears with the following conditions:

A VERY hot day after a medium drive around town

an average day with a drive around town.

After a long drive, i.e. motorway then stop an left engine on.

Could this actually be an electrical fault i.e., would a new battery solve this?
  • Similar Topics
    Replies
    Views
    Last post